Add printConfig to PERF plugin

src/sensors/perfevent/PerfSensorBase.h

@@ -44,6 +44,11 @@ public:
 	void setType(unsigned type)		{ _type = type; }
 	void setConfig(unsigned config)	{ _config = config;	}
 
+	void printConfig(LOG_LEVEL ll, LOGGER& lg) {
+        LOG_VAR(ll) << "     Type:   " <<  _type;
+        LOG_VAR(ll) << "     Config: " << _config;
+    }
+
 protected:
 	unsigned int _type;
 	unsigned int _config;

src/sensors/perfevent/PerfSensorGroup.cpp

@@ -272,3 +272,12 @@ uint64_t PerfSensorGroup::calculateIntervalValue(uint64_t previous, uint64_t cur
 	}
 	return current - previous;
 }
+
+void PerfSensorGroup::printConfig(LOG_LEVEL ll) {
+    if (_sensorGroupLeader) {
+      LOG_VAR(ll) << "   This is a Leader Group";
+    } else {
+      LOG_VAR(ll) << "   This is a Non-Leader Group";
+    }
+    LOG_VAR(ll) << "   CPU Id: " << _cpuId;
+}

src/sensors/perfevent/PerfSensorGroup.h

@@ -34,6 +34,8 @@ public:
 
 	void pushBackGroup(PerfSGPtr perfGroup) { _fellowSensorGroups.push_back(perfGroup); }
 
+	void printConfig(LOG_LEVEL ll) override;
+
 private:
 	void read() override;
 	void readAsync() override;